requirements, on time. ASN considered EDF’s request to be acceptable in the light of the explanations provided. Deployment of the periodic safety review on the site EDF carried out the first of the fourth ten-yearly outages in 2019 (Tricastin NPP reactor 1). At the end of 2024, EDF had carried out or initiated 22 of these tenyearly outages. These outages are a major step in the fourth periodic safety reviews. During these outages, EDF carries out the required inspections and deploys most of the safety improvements associated with the review. The fourth ten-yearly outages for the 900 MWe reactors will run until 2031. In 2024, the public inquiries were held for the fourth periodic safety reviews of Gravelines NPP reactors 1 and 3. The fifth periodic safety review In 2023, EDF sent ASN the envisaged guidelines for the generic phase study programme for the fifth periodic safety review of the 900 MWe reactors. In the light of the major modifications made during the fourth periodic safety review, which will continue up until 2036 for the last reactor, EDF intends to focus the fifth periodic safety review: ∙on verifying the conformity of the installations with their applicable requirements, maintaining equipment qualification and managing ageing, for operation up to 60 years; ∙on reassessing the management of risks and detrimental effects, anticipating the effects of climate change (external hazards, water resource, etc.). After consulting the public and further to the opinion of the Advisory Committee of Experts for nuclear Reactors (GPR) ASN issued a position statement in December 2024 on these guidelines (see corresponding notable event page 20). This periodic safety review serves to determine the conditions for continued operation of the reactors beyond 50 years. ASN considers that the general guidelines adopted by EDF for this review are pertinent and consistent with the current level of knowledge. This fifth periodic safety review should allow consolidation of the major safety improvements made to the reactors during their fourth periodic safety review and reinforce the way in which the effects of climate change are addressed. However, ASN asks EDF to supplement or clarify some of these general objectives. Time-line of first criticality of the French nuclear power reactors 2,000 0 4,000 6,000 8,000 1980 1981 1982 1983 1984 1985 1986 1987 1988 1990 1991 1992 1993 1996 1997 1999 2024 900 MWe 1,300 MWe 1,450 MWe 1,600 MWe 1978 1,800 MWe 1,800 MWe 1,800 MWe 3,600 MWe 6,200 MWe 4,800 MWe 4,800 MWe 3,900 MWe 2,900 MWe 1,450 MWe 1,600 MWe 1,300 MWe 1,300 MWe 1,300 MWe 1,450 MWe 2,600 MWe 6,100 MWe 7,200 MWe 6,300 MWe Total power Date of 1st criticality 1979 Cattenom 2 Nogent 1 Belleville 2 Nogent 2 Cattenom 3 Cattenom 4 Penly 2 Golfech 2 Chooz B1 Chooz B2 Civaux 2 Flamanville 3 Civaux 1 Penly 1 Golfech 1 Belleville 1 Chinon B4 Paluel 1 Cruas 2 Paluel 2 Saint-Alban 1 Paluel 3 Gravelines 6 Flamanville 1 Paluel 4 Saint-Alban 2 Flamanville 2 Chinon B3 Cattenom 1 Gravelines 5 Cruas 4 Bugey 2 Bugey 3 Bugey 4 Bugey 5 Tricastin 1 Gravelines 1 Tricastin 2 Tricastin 3 Gravelines 2 Dampierre 1 Dampierre 2 Saint-Laurent B2 Blayais 2 Chinon B1 Blayais 1 Dampierre 3 Cruas 1 Blayais 4 Blayais 3 Chinon B2 Gravelines 4 Tricastin 4 Cruas 3 Dampierre 4 Gravelines 3 Saint-Laurent B1 320 ASN Report on the state of nuclear safety and radiation protection in France in 2024 The EDF Nuclear Power Plants
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